feat(whale-api): whitelist vmmap (#2144)

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#### What this PR does / why we need it:
as titled, to whitelist
[vmmap](https://github.com/DeFiCh/ain/blob/28044c68a0c8e012be4976350975eabaf6172dad/src/masternodes/rpc_evm.cpp#L167)

#### Which issue(s) does this PR fixes?:
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Fixes #

#### Additional comments?:

Co-authored-by: Lyka Labrada <[email protected]>

apps/whale-api/src/module.api/rpc.controller.ts

@@ -42,7 +42,8 @@ export class MethodWhitelist implements PipeTransform {
     'getrawtransaction',
     'getgovproposal',
     'listgovproposals',
-    'listgovproposalvotes'
+    'listgovproposalvotes',
+    'vmmap'
   ]
 
   transform (value: string, metadata: ArgumentMetadata): string {